The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Aug. 06, 2012
Saki Takada, Kanagawa, JP;
Yosuke Yamamoto, Kanagawa, JP;
Toshihiro Ise, Kanagawa, JP;
Tetsu Kitamura, Kanagawa, JP;
Toru Watanabe, Kanagawa, JP;
Wataru Sotoyama, Kanagawa, JP;
Koji Takaku, Kanagawa, JP;
Kimiatsu Nomura, Kanagawa, JP;
Saki Takada, Kanagawa, JP;
Yosuke Yamamoto, Kanagawa, JP;
Toshihiro Ise, Kanagawa, JP;
Tetsu Kitamura, Kanagawa, JP;
Toru Watanabe, Kanagawa, JP;
Wataru Sotoyama, Kanagawa, JP;
Koji Takaku, Kanagawa, JP;
Kimiatsu Nomura, Kanagawa, JP;
UDC Ireland Limited, Dublin, IE;
Abstract
An organic electroluminescent element using a compound represented by the following general formula emits dark blue light and has a small change in the chromaticity during luminance modulation: wherein each of Rto Rrepresents a hydrogen atom or a substituent; Ato Arepresent CRor N; L and X each independently represent any one of CRR, NR, O, S, and SiRR; and each of Rto Rrepresents a hydrogen atom or a substituent.